paridon



July 6 1926.

M. PARlDoN WEB CONTROLLING MECHANISM Filed Feb. 23. 1923 2 Sheets-Sheet2 J C 1 J HHIIIIIIIIIIMIIIIIPIIUHHHIIH Patented July 6, 1926.

UNITED STATES PATENT loF FICE.

MICHAEL PARIDON, OF BARBERTON, OHIO, ASSIGNOR TO ATI'IE :DIAMOND MATCHCOM- DANY, OF CHICAGO, ILLINOIS, A. CORPORATION F ILLINOIS.

wEB-coNTnoLLING MECHANISM.

Application led February 23, 1923. Serial 'No.`620,585.

This invention relates to mechanism for controlling a web of paper inits travel from a supply roll to the intermittent feed mechanism oi", apaper working machine; such, for

' example, as a machine for making matches from 'heavy paper orcardboard. In such v machines the web of paper is directed in aloop-like path from the roll to the feed mechanism, so as to provide aslack portion which permits the intermittent advancement of the paperwithout undue ten sion; but such slack portion, owing to the size andweight of the supply roll and its variable rotation as the relativelysliil' paper is intermittently unwound therefrom, is frequently extendedto an unnecessaryand objectionable extent beyond the supply roll. Infact, the prolongation of the loop may continue during the succeedingimpulses of the feeding mechanism until it becomes necessary to stop themachine and rewind the overrun material on the roll.

The object of my invention is to overcome the objection mentioned,and,'accordingly, the invention comprises automatic web-controllingmeans of simple and eilicient construction and operation, `as will behereinafter described and claimed.

In the drawings- Figure 1 is a side elevation of a portion of apaper-match machine equipped with a form of web-controlling mechanismembodying the principle of my invention.

Fig. 2 is a transverse section adjacent a cross-bar upon which the webis supported after it leaves the supply rol1,.as on the line 2 2 ofFig. 1. v

Fig. 3 is a transverse section through the rotary hub upon which thesupply roll is mounted, as on the line 3-3 of Fig. 1.

Fig. 4 is a sectional elevation of the web take-oifwheel, and itsadjuncts.

Fig. 5 is a vertical section through the hub of the said wheel, as onthe line 5-5 of Fig. 4.

Fig. 6 is a sectional elevation of the webcontrolling mechanism,illustrating the loop in its inactive position in respect to thetake-off wheel. i f

Referring to the drawings, l0 designates the standards of a portion ofthev supporting framework of a paper Working machine, such, for example,as the delivery end of a match machine wherein a web of stiff paper orcardboard is operated upon. The usual take-off belt 100 of the matchmachine passes about pulleys 101 mounted on shafts 102 having theirbearings in suitably-disposed brackets 103 on the supporting framework.11 designates a roll of paper stock supported axially on a flanged hub12 which is carried by a horizontal shaft 13 having its bearings inbrackets 14 on suitably-disposed frame standards 15. Mounted in suitableb'earings on the standards 10, which are located forwardly of the supplyroll, is a wheel 16 about which the web of paper A fromthe roll isdrawn; thence directed backward and under the supply roll, and thenceupward tothe bite of`l a pair of feed rolls 17 of the paper workingmachine; which rolls are geared together and intermittently actuated inthe usual manner to advance succeeding uniform lengths ofthe web intothe machine. Thus there is formed between the supply roll and the feedrolls a loop or slack portion of the web that tends tov prevent unduetension of the paper as it is being intermittently advanced by the feedrolls. Heretofore the wheel comprised an idler roller about which theweb was flexed. In consequence of the weight and size of the supply rollthe paper as it was intermittently drawn therefrom, frequently over-ranthe roll and produced an undue elongation of the loop as previouslymentioned;` particularly when the machine was, running at .relativelyhigh speed. In pursuange of my invention the wheel 16 is so'constructedand actuated in respect toY the path of the web that said wheelco-operates with the web and its associated parts in such a manner as toprevent undue prolongation of the loop or slack portion under thevarying conditions of service.v f,

By reference more especially to Fig. 4 it Will be' observedy that thewheel 16, lin the form illustrated, comprises two peripherally-Hangedheads 18 havingcentral hubs 19 Which are separately pinned to atransverse shaft 20 so that they may be nicely adjusted toward or fromeach other to ensure a predetermined distance between the inner faces ofthe flanges of the respective heads, which faces are oppositely beveledas Shownvat 21. ,The heads'are so adjusted in spaced relation to eachother that the web, when it is withdrawn from the supply roll, passesbetween I eries of the heads and With the edges of the web in contactwith the inclined faces of the flanges, for a purpose hereinafter eX-plained. The shaft 20, which is mounted to rotate freely in bearings 22supported by the standards 10, has loosely mounted thereon, adjacent oneof the flanged heads, a sleeve 23 that is continuously rotated in anysuitable manner. In the present instance the sleeve has fast thereon thehub of a pulley 24C that is continuously driven through a belt 25 from apulley 26 on a driven shaft 27 of the match machine. The pulley 24 isdriven in clockwise direction, as viewed in Figs. 1 and G, that is, inthe direction the paper roll 11 rotates when the web is being unwoundtherefrom. Fast on the sleeve 23 is a ratchet wheel `8 with the teeth ofwhich engages a pawlf) on the adjacent head 18, the angular relation ofthe ratchet teeth and pawl being such that the wheel, together with theshaft 2l), continuously rotated with the hub.

Adjacent the flanged wheel 16 is a crossrod 29 supported by brackets 30on horirontal bars 31 of' the supporting frame of the mat-ch machine;the top of said rod beingin a plane below the tops of the wheel flanges.A cross-rod 32 is supported inI brackets 33 on the standards l() and inproximity to the floor.

The free endof' the paper web is drawn from the supply roll through apath above the rod 29 and l'ietween the upper portions of the beveledflanges of the continuously rotating wheel 16; thence the web is flexeddownwardly about said wheel and drawn rearwardly therefrom beneath thesupply roll; thence into engagement with the bite of thefeed rolls 17of'the match machine. The pawl and ratchet connection between the wheel16 and the actuating sleeve 23, permits free and independent rotation ofthe wheel as the web is being pulled around the same,g and towards thefeed rolls preparatory to engagement with the latter. During theopera-tion of the machine the beveled flanges of t'he continuouslyrotating wheel effectively grip the edges of the web and draw itprogressively from the supply roll at such a speed in relation to theoperation of the fced rolls as to produce a substantially uniform slackportion between the wheel and the feed rolls, which portion sags uponand in frictional contact with a suitable supporting surface that isconveniently 'afforded by the floor. The wheel thus constitutes atake-off element for the web and the floor a frictional retardingelement therefor. The pressure of the edges of the web against theinclined flanges of the take-offl wheel, and the drag of the web on thefloor effectually prevent the too rapid withdrawal of the web from thesupply roll during the normal operation of the machine, which re.-

sult is also contributed to by the contact of the web with the cross-rod29. If, at any time, an excess of material should be Withdrawn from thesupply roll, the resulting extended lower portion of' the loop, bearingagainst the floor, will be retarded in its progress and the loop thus bebodily projected to the right and against the lower cross-rod 32 in sucha manner that the upper portion of the loop, by virture of the inherentflexibility Aof the material, will be raised from Contact with theinclined faces of the flanges of the wheel and thereby be disengagedfrom the' latter. Such portion will thus be supported adjacent the Wheelby the cross-rod 29, while the cross-rod 32 will act as an abutment toprevent the undue projection of' the curved portion ofI the loop, asseen in Fig. Hence in the next succeeding impulses of' the feed rolls,the Weby will be advanced in a manner to take up the surplus of the loopprojection and position the web in contact with the inclined faces of'the flanges of the take-off Wheel, as seen in Fig. '1. This done, theuniform feeding ot' the web will be resumed and continued, but in theevent of an overrun of the material from the supply roll the resultingundue projection of the loop will be prevented, and the irregularityautomatically corrected, as previously described; and so on.

It is to be noted that the face of the web does not bear upon theperipheries of the heads 18 of the take-off wheel, but that the edges ofthe web contact with, and are acted upon by the beveled surfaces only ofthe flanges, Which surfaces, at their web engaging portions, travel at aspeed proportionate to the advancing action of the feed rolls on theWeb. Consequently an effective contact between,` the wheel and the webto accomplish the advancement of the latter from the supply roll isensured, and yet the web can be quickly disengaged from or as readilyreengaged with the Wheel to meet the varying requirements hereinbeforementioned.

It is to be understood that my invention is not limited to theparticular construction herein disclosed, as the mechanism may bemodified Within the principle of the invention and the scope of theappended claims.

I claim- 1. In a machine having means for feed ing a web of material insuccessive lengths, and means for supporting a roll of said material insuch position that it can be directed in a loop-like path to the feedingmeans, the combination with said feeding and supporting means, of atake-off wheel having spaced flanges with oppositely inclined actingsurfaces between which the Web is adapted to be positioned in itsklooplike path, means for continuously rotating said Wheel to unwind thematerial progressively from the roll and produce a slac-lt portion ofthe loop between the wheel and the feeding means, and means forretarding the travel of said slack portion to effect'the automaticraising of the web above the acting surfaces of the Wheel flanges whenexcess material is unwound from the roll.

2. In a machine having means for feeding a web of material in successivelengths, and means for supporting a roll of said material in suchposition that it can be directed in a loop-like path to the feedingmeans, the combination with said feeding and supporting means, of atake-ofi' wheel having spaced flanges with oppositely inclined actingsurfaces between which the web is adapted to be positioned in itslooplike path, means for continuously rotating said wheel to unwind thematerial progressively from the roll and produce a slack portion of theloop between the wheel and the feeding means, means for retarding thetravel of said 'slack portion to effect the automaticraising of the webabove the acting surfaces of the wheel flanges when excess material isunwound from the roll, and an yabutment member for the loop during itsdisengaging movement.

3. In a machi/ne having means for feeding a web of material insuccessive lengths, anld means for supporting'a roll of said material insuc-h position that it can be directed in a loop-like path to thefeeding means, the combination with said feeding and supporting means,of a take-ofil wheel having spaced flanges `with oppositely in- 4clinedacting surfaces between which the web is adapted to be positionedlinjtslooplike path, means for continuously rotating said wheel to unwind thematerial progressivel from the roll and produce a slack portion of theloop between the wheel and the feeding means, means forl retarding thetravel of said slack portion to effect the automatic raising of the webabove the acting surfaces of the wheel flanges when excess material isunwound from the roll, a supporting member for the web adjacent thetake-off wheel, and an abutment member for the loop during itsdisengaging movement.

4. In a machine having means for feeding a web of material in successivelengths, and means for supporting a roll of said material in suchposition that it can be diirected in a loop-like path to the feedingmeans, the combination with said feeding and supporting means, of atake-oftl wheel having spaced flanges with oppositely inclined actingsurfaces between which the web is adapted to be positioned in itsloopilike path, means for continuously rotating said Wheel to unwind thematerial progressively from the roll and produce a slack portion of theloop between the Wheel and the feeding means, said last-named meanspermitting free. rotation of the wheel relatively thereto, and means forretarding the travel of said slack portion to effect the automaticraising of the web above the acting surfaces of the wheel flanges whenexcess material is unwound from the roll.

Signed at Barberton, in the count1 of Summit and State of Ohio, this19th day of February A. D. 1923.

MICHAEL PARIDON.

